S000039473 [Member] Shareholder Fees - Sit Quality Income Fund |
Mar. 31, 2025
USD ($)
|
|---|---|
| Sit Quality Income Fund - Class S | |
| Prospectus [Line Items] | |
| Shareholder Fee, Other | $ 0 |
| Sit Quality Income Fund - Class Y | |
| Prospectus [Line Items] | |
| Shareholder Fee, Other | $ 0 |